London's sewer system, like in most major cities around the country, are often clogged by accumulations of fat that must be freed by sewer workers. But now, London is trying to turn that trash literally into treasure. They want to use the fat to fuel a power plant.

London's sewer system, like in most major cities around the country, are often clogged by accumulations of fat that must be freed by sewer workers. But now, London is trying to turn that trash literally into treasure. They want to use the fat to fuel a power plant.

London's sewer system, like in most major cities around the country, are often clogged by accumulations of fat that must be freed by sewer workers. But now, London is trying to turn that trash literally into treasure. They want to use the fat to fuel a power plant.